---
url: "https://pay.weixin.qq.com/doc/v3/partner/4016588044-go.md"
title: "修改品牌会员发券活动信息-请求示例-go"
doc_id: 4016588044
example_lang: "go"
---

## Go


需配合微信支付工具库 wxpay\_utility 使用，请参考 [Go](https://pay.weixin.qq.com/doc/v3/partner/4015119446.md)

```
package main

import (
	"bytes"
	"demo/wxpay_utility" // 引用微信支付工具库，参考 https://pay.weixin.qq.com/doc/v3/partner/4015119446
	"encoding/json"
	"fmt"
	"net/http"
	"net/url"
	"strings"
	"time"
)

func main() {
	// TODO: 请准备商户开发必要参数，参考：https://pay.weixin.qq.com/doc/v3/partner/4013080340
	config, err := wxpay_utility.CreateMchConfig(
		"19xxxxxxxx",                 // 商户号，是由微信支付系统生成并分配给每个商户的唯一标识符，商户号获取方式参考 https://pay.weixin.qq.com/doc/v3/partner/4013080340
		"1DDE55AD98Exxxxxxxxxx",      // 商户API证书序列号，如何获取请参考 https://pay.weixin.qq.com/doc/v3/partner/4013058924
		"/path/to/apiclient_key.pem", // 商户API证书私钥文件路径，本地文件路径
		"PUB_KEY_ID_xxxxxxxxxxxxx",   // 微信支付公钥ID，如何获取请参考 https://pay.weixin.qq.com/doc/v3/partner/4013038589
		"/path/to/wxp_pub.pem",       // 微信支付公钥文件路径，本地文件路径
	)
	if err != nil {
		fmt.Println(err)
		return
	}

	request := &ModifyMembershipActivityRequest{
		ActivityId: wxpay_utility.Int64(25),
		BrandId:    wxpay_utility.String("1004"),
		Title:      wxpay_utility.String("入会享券"),
		SubTitle:   wxpay_utility.String("5张满减券"),
		BeginTime:  wxpay_utility.Time(time.Now()),
		EndTime:    wxpay_utility.Time(time.Now()),
	}

	response, err := ModifyMembershipActivity(config, request)
	if err != nil {
		fmt.Printf("请求失败: %+v\n", err)
		// TODO: 请求失败，根据状态码执行不同的处理
		return
	}

	// TODO: 请求成功，继续业务逻辑
	fmt.Printf("请求成功: %+v\n", response)
}

func ModifyMembershipActivity(config *wxpay_utility.MchConfig, request *ModifyMembershipActivityRequest) (response *MembershipActivity, err error) {
	const (
		host   = "https://api.mch.weixin.qq.com"
		method = "PATCH"
		path   = "/v3/brand/partner/card-member/membership-activities/{activity_id}"
	)

	reqUrl, err := url.Parse(fmt.Sprintf("%s%s", host, path))
	if err != nil {
		return nil, err
	}
	reqUrl.Path = strings.Replace(reqUrl.Path, "{activity_id}", url.PathEscape(fmt.Sprintf("%v", *request.ActivityId)), -1)
	reqBody, err := json.Marshal(request)
	if err != nil {
		return nil, err
	}
	httpRequest, err := http.NewRequest(method, reqUrl.String(), bytes.NewReader(reqBody))
	if err != nil {
		return nil, err
	}
	httpRequest.Header.Set("Accept", "application/json")
	httpRequest.Header.Set("Wechatpay-Serial", config.WechatPayPublicKeyId())
	httpRequest.Header.Set("Content-Type", "application/json")
	authorization, err := wxpay_utility.BuildAuthorization(config.MchId(), config.CertificateSerialNo(), config.PrivateKey(), method, reqUrl.RequestURI(), reqBody)
	if err != nil {
		return nil, err
	}
	httpRequest.Header.Set("Authorization", authorization)

	client := &http.Client{}
	httpResponse, err := client.Do(httpRequest)
	if err != nil {
		return nil, err
	}
	respBody, err := wxpay_utility.ExtractResponseBody(httpResponse)
	if err != nil {
		return nil, err
	}
	if httpResponse.StatusCode >= 200 && httpResponse.StatusCode < 300 {
		// 2XX 成功，验证应答签名
		err = wxpay_utility.ValidateResponse(
			config.WechatPayPublicKeyId(),
			config.WechatPayPublicKey(),
			&httpResponse.Header,
			respBody,
		)
		if err != nil {
			return nil, err
		}
		response := &MembershipActivity{}
		if err := json.Unmarshal(respBody, response); err != nil {
			return nil, err
		}

		return response, nil
	} else {
		return nil, wxpay_utility.NewApiException(
			httpResponse.StatusCode,
			httpResponse.Header,
			respBody,
		)
	}
}

type ModifyMembershipActivityRequest struct {
	BrandId    *string    `json:"brand_id,omitempty"`
	ActivityId *int64     `json:"activity_id,omitempty"`
	Title      *string    `json:"title,omitempty"`
	SubTitle   *string    `json:"sub_title,omitempty"`
	BeginTime  *time.Time `json:"begin_time,omitempty"`
	EndTime    *time.Time `json:"end_time,omitempty"`
}

func (o *ModifyMembershipActivityRequest) MarshalJSON() ([]byte, error) {
	type Alias ModifyMembershipActivityRequest
	a := &struct {
		ActivityId *int64 `json:"activity_id,omitempty"`
		*Alias
	}{
		// 序列化时移除非 Body 字段
		ActivityId: nil,
		Alias:      (*Alias)(o),
	}
	return json.Marshal(a)
}

type MembershipActivity struct {
	OutRequestNo           *string                      `json:"out_request_no,omitempty"`
	BrandId                *string                      `json:"brand_id,omitempty"`
	CardId                 *string                      `json:"card_id,omitempty"`
	ActivityChannel        *MembershipActivityChannel   `json:"activity_channel,omitempty"`
	Title                  *string                      `json:"title,omitempty"`
	SubTitle               *string                      `json:"sub_title,omitempty"`
	BeginTime              *time.Time                   `json:"begin_time,omitempty"`
	EndTime                *time.Time                   `json:"end_time,omitempty"`
	ApplyTotal             *int64                       `json:"apply_total,omitempty"`
	ApplyAvailable         *int64                       `json:"apply_available,omitempty"`
	ProductCouponStockList []ProductCouponStock         `json:"product_coupon_stock_list,omitempty"`
	ActivityId             *int64                       `json:"activity_id,omitempty"`
	ActivityState          *MembershipGiftActivityState `json:"activity_state,omitempty"`
	CreateTime             *time.Time                   `json:"create_time,omitempty"`
	ModifyTime             *time.Time                   `json:"modify_time,omitempty"`
}

type MembershipActivityChannel string

func (e MembershipActivityChannel) Ptr() *MembershipActivityChannel {
	return &e
}

const (
	MEMBERSHIPACTIVITYCHANNEL_MECHANT_APP_COMPONENT MembershipActivityChannel = "MECHANT_APP_COMPONENT"
)

type ProductCouponStock struct {
	ProductCouponId *string `json:"product_coupon_id,omitempty"`
	StockId         *string `json:"stock_id,omitempty"`
}

type MembershipGiftActivityState string

func (e MembershipGiftActivityState) Ptr() *MembershipGiftActivityState {
	return &e
}

const (
	MEMBERSHIPGIFTACTIVITYSTATE_MEMBERSHIP_ACTIVITY_CREATED    MembershipGiftActivityState = "MEMBERSHIP_ACTIVITY_CREATED"
	MEMBERSHIPGIFTACTIVITYSTATE_MEMBERSHIP_ACTIVITY_EFFECTIVE  MembershipGiftActivityState = "MEMBERSHIP_ACTIVITY_EFFECTIVE"
	MEMBERSHIPGIFTACTIVITYSTATE_MEMBERSHIP_ACTIVITY_TERMINATED MembershipGiftActivityState = "MEMBERSHIP_ACTIVITY_TERMINATED"
	MEMBERSHIPGIFTACTIVITYSTATE_MEMBERSHIP_ACTIVITY_EXPIRED    MembershipGiftActivityState = "MEMBERSHIP_ACTIVITY_EXPIRED"
)

```
